My source didn’t know any of the details beyond the amount — the mix of cash and stock or how much of the total is tied to an earn out, for example. Regardless, that’s an impressive price for a young startup that raised a $1.8 million Series A (from Highland Capital, Andreessen Horowitz, and others) less than a year ago. (It was also incubated at StartX.)

When I reached out for this story, spokespeople from both Yahoo and Aviate declined to comment on the terms of the deal.

Yahoo has on a pretty visible acquisition streak since Marissa Mayer took over as CEO. Last month, for example, it acquired content delivery network provider PeerCDN. During her keynote at the Consumer Electronics Show, Mayer said that Aviate’s technology will allow Yahoo to deliver content in “smarter and more personalized” ways on Android phones.